Introducció
This manual provides essential information for the proper use, maintenance, and troubleshooting of your Master Lock Keyed Padlock, Model 6321. Designed for high security, this padlock features a durable construction with a boron alloy shackle and steel body, offering reliable protection for your valuables.
Característiques del producte
- Material de grilló: Hardened Boron Alloy for enhanced cut resistance.
- Material del cos: Laminated Steel for strength and durability.
- Amplada del cos: 2-1/8 polzades.
- Diàmetre del grilló: 5/16 polzades.
- Tipus de clau: Alike, with 2 keys included.
- Seguretat: High security design with 5 pins.
- Resistència a la intempèrie: Yes, suitable for outdoor use.
- Shackle Type: Shrouded for added protection against prying and cutting.

Figura 1: Frontal view of the Master Lock 6321 Keyed Padlock, showcasing its robust design and shrouded shackle.
Què hi ha a la caixa
Upon opening the product packaging, you will find the following items:
- 1 Master Lock 6321 Keyed Padlock
- 2 Alike Keys
Configuració
- Desembalar: Traieu amb cura el cadenat i les claus de l'embalatge.
- Inspeccionar: Examine the padlock for any signs of damage or manufacturing defects. Ensure the shackle moves freely when unlocked and locks securely when closed.
- Identificació de la clau: Identify the two identical keys provided. These keys are "alike," meaning they will open any padlock in a set of similarly keyed locks.
- Prova de funcionament: Before deployment, insert a key into the keyway and turn it to ensure smooth operation of the locking mechanism.

Figure 2: The Master Lock 6321 Padlock shown with its two accompanying keys and key dimensions.
Instruccions de funcionament
Per desbloquejar el cadenat:
- Insert one of the provided keys fully into the keyway at the bottom of the padlock.
- Turn the key clockwise approximately 90 degrees. You will feel a slight click as the locking mechanism disengages.
- Estireu el grilló cap amunt per obrir el cadenat.
- Remove the key by turning it counter-clockwise back to its original position and pulling it out.
Per bloquejar el cadenat:
- Ensure the shackle is fully inserted into the padlock body.
- The padlock will automatically lock upon closing the shackle. No key is required to lock it.
- Estireu suaument el grillet per confirmar que estigui ben bloquejat.
Important: Always keep a spare key in a secure location. Avoid forcing the key if it does not turn smoothly.
Manteniment
Un manteniment regular garanteix la longevitat i el funcionament fiable del cadenat Master Lock.
- Lubricació: Periodically apply a small amount of graphite lubricant or a silicone-based spray into the keyway and around the shackle opening. This helps prevent corrosion and ensures smooth operation, especially in harsh environments. Avoid oil-based lubricants as they can attract dirt.
- Neteja: Wipe the padlock body with a clean, dry cloth to remove dirt and debris. For stubborn grime, a damp es pot utilitzar un drap, seguit d'un assecat complet.
- Emmagatzematge: When not in use, store the padlock in a dry environment to prevent moisture buildup.
- Atenció clau: Handle keys with care. Avoid bending or damaging them, as this can impair the lock's function.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| La clau no s'insereix ni gira suaument. | Debris in keyway, bent key, or lack of lubrication. | Clean keyway with compressed air. Inspect key for damage. Apply graphite lubricant to keyway. Do not force the key. |
| El grillet és rígid o difícil d'obrir/tancar. | Corrosion, dirt buildup, or lack of lubrication around the shackle mechanism. | Clean around the shackle entry points. Apply a silicone-based lubricant to the shackle and its entry points. |
| Padlock jams and won't unlock. | Internal mechanism issue, extreme weather conditions, or excessive force applied. | Apply lubricant and gently try to turn the key. If the issue persists, contact Master Lock customer support. Avoid using excessive force, which can damage the lock or key. |
Especificacions
| Atribut | Detall |
|---|---|
| Número de model | 6321 |
| Marca | Master Lock |
| Dimensions del producte (L x A x A) | 4 x 2.1 x 1 polzades |
| Pes | 1 lliures |
| Diàmetre del grillet | 5/16 polzades |
| Alçada del grillet | 3/4 polzades |
| Amplada del grillet | 7/8 polzades |
| Material de grillons | Aliatge de bor endurit |
| Material del cos | Laminated Steel, Iron Shroud |
| Nombre de pins | 5 |
| Tipus de clau | Igual |
| Nombre de claus | 2 |
| Resistent a la intempèrie | Sí |
| Alta Seguretat | Sí |
| Rekeyable | Sí |
Garantia i Suport
For information regarding product warranty, returns, or technical support, please contact Master Lock directly through their official channels. You can visit the official Master Lock store for more details and contact information:
Visit the Master Lock Store on Amazon
Please have your product model number (6321) and ASIN (B000E2NMWC) available when contacting support.





